Shock; Vibration - Seagate LD25 - Series 20 GB Hard Drive Product Manual

2.10.5

Shock

All shock specifications assume that the drive is mounted securely with the input shock applied at the drive
mounting screws. Shock may be applied in the X, Y or Z axis.
2.10.5.1 Operating shock
These drives comply with the performance levels specified in this document when subjected to a maximum
operating shock of 100 Gs based on half-sine shock pulses of 2 msec. Shocks should not be repeated more
than two times per second.
2.10.5.2 Nonoperating shock
The nonoperating shock level that the drive can experience without incurring physical damage or degradation
in performance when subsequently put into operation is 500 Gs based on a nonrepetitive half-sine shock pulse
of 2 msec duration.
The nonoperating shock level that the drive can experience without incurring physical damage or degradation
in performance when subsequently put into operation is 350 Gs based on a nonrepetitive half-sine shock pulse
of 1 msec duration.
The nonoperating shock level that the drive can experience without incurring physical damage or degradation
in performance when subsequently put into operation is 200 Gs based on a nonrepetitive half-sine shock pulse
of 0.5 msec duration.
2.10.6

Vibration

All vibration specifications assume that the drive is mounted securely with the input vibration applied at the
drive mounting screws. Vibration may be applied in the X, Y or Z axis.
2.10.6.1 Operating vibration
The maximum vibration levels that the drive may experience while meeting the performance standards speci-
fied in this document are specified below.
22–350 Hz 0.5 Gs (0 to peak).
351-500 Hz 0.25 Gs
2.10.6.2 Nonoperating vibration
The maximum nonoperating vibration levels that the drive may experience without incurring physical damage or degrada-
tion in performance when subsequently put into operation are specified below
22–350 Hz: 5.0 Gs (0 to peak).
351-500 Hz 1.0 G
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LD25 Series SATA Product Manual, Rev. C